Mechanism for operating mufflers on musical instruments.



'Patented Nov; 12, 190|.

v y w. c osENuRv. 4NIEGHNISNI FUR A[JPEI'1ATING MUFFL-ERS 0NMUSICAALINSTRUMENTS.

- (Application med Apr. e, 1901.)

(nu Modell) cgn-- VnosENiiURY, oFjRIcHMoND, INDIANA, AssIcNon V'ro-srAnRPIANo'CoMPANig'oF RIcHMVoND, ,'INDIANA.

MECHANISM roRoPERnNG MuFFu-:Rs'on MuslcA'L INSTRUMENTS..

` i sPE'crFIcATIoN forming part of Letters Patent No.` 686,251, datedNovember 12, 1901.

Application tiled April', 1901...' Serial No. 54,702. (No model.)

To @ZZ 'whom ma/,y concern.'

l,13e it known that I, WILLIAM C. BosEN- BURY, a citizen of theuUnitedStates, residing at Richmond, in the county f'Wayne and State ofIndiana, have invented new'and useful Improvements in Mechanism forOperating Mufflers on Musical Instruments,of which the following is aspecification.

thereof.

which will ap-pear from the mechanism illus` My invention relates toimprovements in mechanism for operating muftlers on musical instrumentsto be operated by the hand of the operator; and the objects ofmyimprovements are, first, to` provide a simple and positive mechanismtoA be controlled by the hand of the operator and for the purpose ofoperating the muiilers on pianos; second, to provide a device of theclass stated with newand novel features which are herein shown and whichcan be easily controlled bythe person using the musicalinstrum'ent, and,third, to provide a new article of manufacture, a device for operatingand controlling the muilers of musical instruments, which will add tothe efticiency and appearance of the musicalinstruvment withoutmaterially increasing the cost I attain these and otherv objects tratedin the accompanying drawings, forming a part of this specification, inWhiche- Figure 1 is a perspective view of the inside surface of one ofthe outside Walls of a piano, showing my invention in perspective and bymeans of. dotted lines the two positions my mechanism is intendedto'assume. Fig. 2 is a 'sectional detail view of a portion of my fmechanism greatly enlarged. Fig. 3 is a front view of the parts of mymechanism show n in Fig. 2 and on the same scale as Fig. 2. Fig.

4 is a detail cross-section of the parts shown in Fig. 5,taken from therear on line XX of Fig. 1. Fig. 5 is .a detail sectional view of 'theparts shown in Fig 4,- taken on the line T T Of Fig: 4.

Similar figures and letters of reference refer to similar partsthroughout the several views. Refering now to the drawings, the partsrcferredto by .figures are the parts which I claim as new, and the partsreferred to by letters are old and are shown in order to show withreference thereto.`

A represents the muiiier-ba'r which my inas shown by the dottedlines.

B represents the block placed between the outer Walls of the piano'andthe piano-keys.

C represents the outer wall of a piano.

D represents the music-shelf of a piano.

E represents the keys of a piano.

F represents the music-desk of a piano.

2l represents an arm' extending backward and upward from the side of thekeys E and pivotally connected to thearm 22.

22 represents an arm pivotally secured to the side of the piano and alsoto 21 and 23.

23 represents an'arm extending up from 22v and connected near the centerof the arm 24;.

24 represents an arm pivotally connected to the side of the piano and tothe upper end of 23.

25 represents a spring-clamp for holding 24 in contact with the pivotl3l and .the side of the piano.

26 represents a spring-clamp for holding 24 in contact with 23 and thepivot 30.

29 represents a'rivet securing 26 to 23.

30 represents a rivet passing through 26, 24, and 23. y

31 representsa rivet or pin uniting 24and 25.

32 representsa screw by -which 25 is secured lto the piano.

33 represents a and 22. o

-34 represents a pin or rivet connecting 2l and 22.

35 represents a screw by which the end of 22 is fastened to the piano.

36 and 37 represent wooden pins or pegs secured in t-he piano and act asstops for my mechanism.

38 represents a plate with a longitudinal slot secured to the block B,as shown.

40 represent-s a knob attached to 21 and extending up through the slotin 38 for the purpose of forming a hold by which my mechanv ism can beoperated by hand.

The operation of my mechanism 'is accomplished by moving the knob.t0-backward and forward, as shown by the dotted lines, to operate themuier.

Thus it canbe seen,

IOO

that when the knob 40 is slid tothe frontxbf-'w the slot in the plate,33,- as shownabynthe solid lines in Fig. 1, my mechanism will assumethe position shown by the solid lines throughout the view. Desir-ing nowto raise the m-nierA, the knob 40 is pushed to the rear in said slot,when the mechanism and the muiiier will assume the position shown by thevdot-ted lines in Fig. 1, whereupon the arm 22 will abut the stop 36,and the pivot 33 will be on a Hdeadcenter,which insures the retention ofthe parts in position without the 'aid of a locking device until theknot 40 is pulled to original position.

My improvements are herein shown as aplied to the inside left-hand endof a piano. It is apparent that they are equally applicable forattachment on the opposite end of a piano,

if so desired.

From the foregoing description, taken in connection-with the drawings,the operation Yas Yof this invention will Vbe readily understood and itsmany advantages be fully apprecir ated, and I will simply state'that thedevice herein shown by reason of its simplicity, attractiveness, easeand eiciency of operation will provea iiseful and practical invention,as I have fully demonstrated.

- My improvements are perfectly adapted to accomplish the results forwhich. theyare intended; but it is evident that changes in andmodifications of the construction herein Shown and describedV may bemade and that analogous parts may be used to accomplish"- sides of thesecond pivoted arm and limiting y,

the movementof. said arm, a connecting-arm extending between said arms'and pivotally connected te both of them, a substantially horizontallymovable arm pivoted 'to the arm playing between the stops, and a handlefor the horizontal arm, one of said stop-pins being adapted to arrestthe play of the second necting-arm-pivoted to the aforesaid armintermediate the length thereof, separate stoppins, a lever having oneend pivoted to the piano and its other end pivoted to the end of theconnecting-arm, and adapted to play between the stop-pins, asubstantially horizontally movable arm pivoted to the lever intermediatethe ends thereof, and a handle for the horizontal arm, one of saidstop-pins being adapted to arrest the play ofthe lever to cause itspivotal connection with the connecting-arm to lie on a dead-center andhold the m'ufiier-bar in operative position.

3. In a mechanism for operating |nuilier bars for pianos, thecombination with a mut'- tler-bar, of an arm connected to themulticrbar` and being itself pivoted, a connectingarm, a spring plate orclamp having one end secured to` the connecting-arm and its other endfree to spring toward and away there from, said mutiier-operating armbeing located between the spring-clamp and the operating-arm and havinga pin whose ends' project into apertures in the spring and connect`ing-arm.

In testimony whereof I have signed my nameto this specification in theypresence of two subscribing witnesses.

WILLIAM C; HOSENBURY.

Witnesses:

R. W. RANDLE, R. E. RANDLE.

thereto and pivoted at'its other end, a cony

